Direct current motor having field magnets formed by injection molding synthetic resin, with which magnetic particles are mixed, to the inner periphery of the stator core
US6812608B2 · kind B2 · utility
2Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2003 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Sep 25, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K23/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Field magnets are attached to an inner periphery of a stator core, which defines a rotor through hole. The stator core has a plurality of recesses open to the rotor through hole. Each recess faces magnet end portions of the field magnets. The recess surface of the recess is away from the surface AC of the magnet end portion and set back toward an outer periphery of the stator core from a rear surface AD of the magnet end portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.